Download the Bihar Board Class 11-12 Chemistry Syllabus 2026-27 PDF in Hindi and English. Check unit-wise topics, marking schemes, theory syllabus and practical details for effective exam preparation.
Bihar Board Class 11-12 Chemistry Syllabus 2026
Bihar Board Class 11 Chemistry Syllabus 2026 focuses on the development of conceptual understanding through practical application. It helps students analyze the concepts and helps them develop interest in the subject. Here’s an overview of the syllabus:
| Bihar Board Class 11 & 12 Chemistry Syllabus 2026 | |
| Board Name | Bihar School Examination Board |
| Class | 11th and 12th |
| Academic Year | 2026-27 |
| Mode of Examination | Offline Mode |
| Total Marks | 100 |
| Time duration | 3 hours (Written Exam) |
| Language | Hindi and English |
| Official Website | https://biharboardonline.com/ |
Bihar Board Class 11 Chemistry Syllabus 2026: Marking Scheme
The Bihar Board Class 11 Chemistry Syllabus 2026 provides a complete overview of the chapters, units, and topics students need to study for the annual examination. Available in both Hindi and English, the syllabus helps students understand the subject requirements clearly and prepare systematically for the BSEB Class 11 Chemistry Exam 2026.
The Bihar Board Class 11 Chemistry marking scheme 2026 explains the marks allotted to different units, helping students identify important topics and plan their revision effectively. Students should pay special attention to major areas such as Organic Chemistry and Hydrocarbons while ensuring that they cover every unit included in the prescribed syllabus.
The Chemistry examination is divided into a 70-mark theory paper and 30 marks for practical examination, making the total assessment worth 100 marks. Students should prepare for both theory and practical components to improve their overall performance.
Below, you can check the BSEB Class 11 Chemistry syllabus 2026, unit-wise marking scheme, chapter-wise topics, and theory and practical marks distribution to organize your exam preparation more effectively.
| Unit No. | Unit Name and Marks |
|---|---|
| I | Some Basic Concepts of Chemistry – 03 |
| II | Structure of Atom – 05 |
| III | Radioactivity – 03 |
| IV | Classification of Elements and Periodicity in Properties – 04 |
| V | Chemical Bonding and Molecular Structure – 05 |
| VI | States of Matter: Gases and Liquids – 04 |
| VII | Thermodynamics – 05 |
| VIII | Equilibrium – 05 |
| IX | Redox Reactions – 03 |
| X | Hydrogen – 03 |
| XI | S-Block Elements – 05 |
| XII | Some P-Block Elements – 07 |
| XIII | Organic Chemistry: Basic Principles and Techniques – 07 |
| XIV | Hydrocarbons – 08 |
| XV | Environmental Chemistry – 03 |
| Total | 70 Marks |
Bihar Board Class 11 Chemistry Practical Syllabus
| Bihar Board Class 11 Chemistry Syllabus 2026 Practical Assessment | |
| Section | Details |
| 1. Basic Laboratory Techniques | 1. Cutting glass tube & glass rod2. Bending a glass tube3. Boring a cork4. Study of flame5. Detection of elements like Na, K, Ca, Ba on the basis of flame test |
| 2. Test for Organic Compounds | Ethanol, Glycerol, Acetone, Acetate, Formate and Glucose |
| 3. Characterization and Purification of Chemical Substance | Crystallization involving impure sample of any one of the following: Alum, copper sulphate, Benzoic acid |
| 4. Qualitative Analysis (Dry test and wet test for one anion and one cation in a salt) | Cations: Pb²⁺, Cu²⁺, As³⁺, Fe³⁺, Mn²⁺, NH₄⁺, CO²⁺, Ca²⁺, Ba²⁺, Mg²⁺Anions: CO₃²⁻, S²⁻, SO₃²⁻, SO₄²⁻, NO₂⁻, NO₃⁻, Br⁻, Cl⁻, I⁻ |
| 5. Quantitative Estimation | (i) Preparation of standard solution of Sodium carbonate oxalic acid.(ii) Preparation of N/10 and NaOH and N/10 HCl solution from benz solution.(iii) Determination of strength of a given volume of sodium hydroxide by titrating it against standard solution of oxalic acid.(iv) Determination of strength of a given solution of hydrochloric acid by titrating it against standard sodium carbonate solution. |
| 6. Experiments related to pH change | Determination and comparison of pH of four solutions (like fruit and vegetables juices, tea etc.) using pH paper or litmus paper.- Know the pH of solutions of acid and weak base and of two and study of pH change by common-ion effect |
7. Projects
- 1. Checking the bacterial contamination in drinking water by testing sulphide ions.
- 2. Methods of purification of water.
- 3. Testing the hardness, presence of iron, chloride etc. depending upon the regional variation in drinking water and the possible causes leading to variation.
- 4. Investigation of the foaming capacity of different washing soaps and the effect of addition of sodium carbonate on it.
- 5. Study the acidity of different samples of tea, coffee, lemon and kerosene oil.
- 6. Determination of the rate of evaporation of different liquids.
- 7. To study the effect of acids and bases on the tensile strength of fibers.
- 8. Determine the contents of cold drinks like glucose, sugar, juice, lemon juice cucumber juice etc.
- 9. To detect the presence of adulterants in food items.
- 10. Detect the presence of acid in a sample of milk.
- 11. Determine the amount of Phosphoric acid in soft drink like coca cola, pepsi, lime etc.
- 12. Find pH of the soil of your school garden and near your surroundings.
- 13. Study the sweetening effect of different artificial sweetening agents.
Bihar Board Class 12 Chemistry Syllabus 2026: Unit Name and Marks
The BSEB Class 12 Chemistry theory examination carries 70 marks, while practical examination carries 30 marks, making the total 100 marks. The following is the unit-wise marking scheme reported for the 2026 examination.
| Unit No. | Unit Name and Marks |
|---|---|
| I | Solid State – 04 |
| II | Solutions – 05 |
| III | Electrochemistry – 05 |
| IV | Chemical Kinetics – 05 |
| V | Surface Chemistry – 04 |
| VI | General Principles and Processes of Isolation of Elements – 03 |
| VII | p-Block Elements – 08 |
| VIII | d- and f-Block Elements – 05 |
| IX | Coordination Compounds – 03 |
| X | Haloalkanes and Haloarenes – 04 |
| XI | Alcohols, Phenols and Ethers – 04 |
| XII | Aldehydes, Ketones and Carboxylic Acids – 06 |
| XIII | Organic Compounds Containing Nitrogen – 04 |
| XIV | Biomolecules – 04 |
| XV | Polymers – 03 |
| XVI | Chemistry in Everyday Life – 03 |
| Total | 70 Marks |
Bihar Board Class 12 Chemistry Practical Syllabus
| No. | Practical Experiment / Topic | Periods |
|---|---|---|
| 1(a) | Preparation of two lyophilic sols and description of their characteristics (starch, egg albumin and gum). | 6 |
| 1(b) | Preparation of two lyophobic sols and description of their characteristics (aluminium hydroxide, ferric hydroxide and arsenious sulphide). | |
| 1(c) | Study of the role of emulsifying agents in stabilizing emulsions of different oils and description in tabular form. | |
| 2(a) | Effect of concentration and temperature on the rate of reaction between sodium thiosulphate and hydrochloric acid. | 5 |
| 2(b) | Study of reaction rates between potassium iodate (KIO₃) and sodium sulphite (Na₂SO₃), using starch solution as an indicator. | |
| 3(i) | Enthalpy of neutralization of HCl and strong base NaOH. | 5 |
| 3(ii) | Enthalpy of neutralization of NaOH and CH₃COOH. | |
| 3(iii) | Determination of enthalpy of ionization on the basis of (i) and (ii). | |
| 4 | Variation of cell potential in Zn/Zn²⁺‖Cu²⁺/Cu with changes in electrolyte concentration (CuSO₄ or ZnSO₄) at room temperature. | 3 |
| 5 | Qualitative analysis: Dry and wet tests for one anion and one cation in a given salt. | 20 |
| 6 | Tests for functional groups in organic compounds: Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and primary amino groups. | 10 |
| 7(i) | Preparation of double salt of ferrous ammonium sulphate or potash alum. | 4 |
| 7(ii) | Preparation of soap. | |
| 8 | Titration: Determination of concentration/molarity of KMnO₄ solution using a standard solution of oxalic acid or ferrous ammonium sulphate. | 7 |
Chemistry Practical Projects
| No. | Project Topic |
|---|---|
| 1 | Study of the presence of carbohydrate, fat and protein in a given material. |
| 2 | Preparation of soybean milk and comparison with natural milk regarding curd formation, temperature effects, etc. |
| 3 | Study of potassium bisulphate/lemon as a food preservative under different conditions of temperature, concentration and time. |
| 4 | Comparative study of fermentation rates in wheat flour, gram flour, potato juice, carrot juice, etc. |
| 5 | Study of common food adulterants in fat, oil, butter, sugar, turmeric powder, chilli powder and pepper. |
Bihar Board Class 12 Chemistry 2026-27 Practical Exam Pattern
The practical exam in Chemistry for Class 12 under BSEB is evaluated on multiple parameters. Students can check the marks distribution for each section below:
| BSEB Class 12 Chemistry 2026-27 Practical Exam Pattern | |
| Evaluation Scheme | Marks |
| Volumetric Analysis | 8 |
| Salt Analysis | 8 |
| Project Work | 4 |
| Content-Based Experiment | 6 |
| Class Record and Viva | 4 |
Bihar Board Class 11-12 Chemistry Syllabus 2026-27 FAQs
Where can I download the Bihar Board Class 11-12 Chemistry Syllabus 2026-27 PDF?
Students can download the Bihar Board Class 11–12 Chemistry Syllabus 2026–27 PDF from the official Bihar School Examination Board (BSEB) website and ExamSuccess.in. The syllabus PDF helps students check prescribed chapters, unit-wise topics, marking schemes, and practical examination details for effective exam preparation. Always verify the latest syllabus through the official BSEB notification.
What is the total marks distribution for Bihar Board Class 11-12 Chemistry?
According to the syllabus information provided here, the Chemistry assessment includes 70 marks for theory and 30 marks for practical examination, making a total of 100 marks. Students should confirm the applicable distribution for their class and academic session.
How can students prepare for the Bihar Board Class 11–12 Chemistry Exam 2026-27?
Students should download the latest Chemistry syllabus PDF, study every prescribed unit, review the marking scheme, practise numerical problems, revise important reactions, and prepare for practical experiments. Solving previous-year question papers can also help students understand the examination pattern.
Is the Bihar Board Chemistry Syllabus 2026-27 available in Hindi and English?
The Bihar Board Class 11–12 Chemistry Syllabus 2026–27 PDF is available on ExamSuccess.in to help students access the syllabus in Hindi and English, where available. Students can check the PDF for chapter-wise topics, unit details, and marking schemes to prepare effectively for the BSEB Chemistry examination.
